package Demo08.Demo0822;

public class CSDN {
    public static void main(String[] args) {
        int a = 1,b = 2;
        int ret1 = add(a,b);
    }
    public static int add(int a,int b){
        return a + b;
        }
    public static long add2(int a,int b){
        return a + b;
    }
}
